Broncos rookie tight end Richard Quinn was not present ...

Broncos rookie tight end Richard Quinn was not present during the team's open portion of practice today.

Quinn, per Colorado state law regarding cases of suspected domestic violence, was jailed overnight in Arapahoe County after a quarrel Monday with his girlfriend that resulted in an obstruction of telephone service harassment charge.

Quinn appeared in court Tuesday morning and had been released on a personal recognizance bond. Quinn's agent, Peter Schaffer, said Quinn "unequivocally denies" the allegations.

Police said at 12:34 p.m. Monday, Arapahoe County deputies responded to a "verbal disturbance that had been physical" between Tiffany Merritt and Quinn, whom Merritt described as her live-in boyfriend.

According to an Arapahoe County Sheriff's report, Quinn's girlfriend called 911 after the couple got into an argument. She reported that Quinn "grabbed her and shook her to the ground" and took her cellphone to prevent her from calling police.

According to the report, Quinn admitted taking the phone, but said he grabbed his girlfriend only after she "started hitting him in the face." The report says Quinn had no sign of injuries to his face. Schaffer said there are multiple scratches on Quinn's back.